【单选题】正常细胞膜外 Na + 浓度约 为膜内 Na + 浓度 的( )
【判断题】凭证的制单日期是必填内容,制单日期不得早于账套启用日期,不得晚于业务日期。( )
【简答题】Leptin plays an important role in adjusting ______ and metabolism.
【多选题】Glutamate plays an important role in protein metabolism because:
A.
participate in transamination
B.
participate in the storage and utilization of ammonia
C.
participate in the synthesis of urea
D.
participate in the metabolism of one carbon unit
【判断题】凭证的制单日期是必填内容,制单日期不得早于账套启用日期,不得晚于业务日期。( )
【判断题】凭证的制单日期是必填内容,制单日期不得早于账套启用日期,不得晚于业务日期。( )
【简答题】Metabolism is the set of life-sustaining chemical transformations within the cells of organisms. means producing by metabolism. , of or relating to metabolism and , any substance involved in metabolis...
【单选题】正常细胞膜外Na + 浓度约为膜内Na + 浓度的()
【单选题】正常细胞膜外 Na + 浓度约为膜内 Na + 浓度的 ( )倍
【判断题】初次样品是从种批的一个抽样点上取出的少量样品